BEWARE: flywheels and counterweights
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BEWARE: flywheels and counterweights
We were doing some balance comparisons using a special arbor made up exclusively for testing Mazda flywheels and counterweights and found that the amount of counterweight is different for the automatic than the manual shift. This should be a huge concern for those using an aftermarket flywheel/counterweight combo for their RX8. There is no properly balanced counterweight for it from Mazda. The counterweight will have to be custom balanced. I don't think it is common knowledge about the counterweights since the amount of counterweight balance was always consistent on RX7 from manual to automatic. Mazdaspeed indicated that the RX8 uses different eccentric shafts in the auto than the manual. This must be where the different balance requirement comes from since they apparently use the same rotors. More flywheel info: The RX7 Turbo and RX8 use the same aftermarket flywheel (with different counterweights, of course).
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Originally posted by -=Zeqs=-
Something to keep in mind.
Any ideas as to weight difference between the auto's and manuals?
Something to keep in mind.
Any ideas as to weight difference between the auto's and manuals?
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Originally posted by renesis_turbo
I bet that is why Unorthodox Racing is making the flywheel with their own counterweight bolted into the flywheel.
I bet that is why Unorthodox Racing is making the flywheel with their own counterweight bolted into the flywheel.
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Counterweights are not consistent with all RX-7s. Third gens for example use a different front counterweight between auto and manual. It's weighted kind a funky.
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Originally posted by CERAMICSEAL
Counterweights are not consistent with all RX-7s. Third gens for example use a different front counterweight between auto and manual. It's weighted kind a funky.
Counterweights are not consistent with all RX-7s. Third gens for example use a different front counterweight between auto and manual. It's weighted kind a funky.
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aluminum, club, counter, counterweight, difference, differences, dirk, flywheel, rx7, rx8, starksen, weight, weights